WO2014201720A1 - 直下型背光模组灯条装配结构、组装方法及液晶显示器 - Google Patents

直下型背光模组灯条装配结构、组装方法及液晶显示器 Download PDF

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Publication number
WO2014201720A1
WO2014201720A1 PCT/CN2013/078521 CN2013078521W WO2014201720A1 WO 2014201720 A1 WO2014201720 A1 WO 2014201720A1 CN 2013078521 W CN2013078521 W CN 2013078521W WO 2014201720 A1 WO2014201720 A1 WO 2014201720A1
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WIPO (PCT)
Prior art keywords
light
backlight module
assembly structure
strips
direct
Prior art date
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Ceased
Application number
PCT/CN2013/078521
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English (en)
French (fr)
Inventor
郭仪正
萧宇均
张彦学
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/008,145 priority Critical patent/US20160097951A1/en
Publication of WO2014201720A1 publication Critical patent/WO2014201720A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details

Definitions

  • the present invention relates to a liquid crystal display technology, and more particularly to a light bar assembly structure suitable for a backlight module and a liquid crystal display thereof.
  • the main object of the present invention is to provide a problem that the line of the light bar can be effectively prevented from being disordered, and the light bar assembly structure, assembly method and liquid crystal display of the direct type backlight module can be prevented from being mismatched, so as to improve the backlight mode.
  • Group product assembly efficiency and yield is to provide a problem that the line of the light bar can be effectively prevented from being disordered, and the light bar assembly structure, assembly method and liquid crystal display of the direct type backlight module can be prevented from being mismatched, so as to improve the backlight mode.
  • the present invention provides a light-emitting assembly structure for a direct-lit backlight module, comprising a circuit board and a plurality of light strips, wherein a PCB circuit strip is disposed at both ends of the circuit board, and the plurality of light strips are The input and output are connected to the PCB circuit strip.
  • the PCB circuit strips are used to store and separate the respective lines that are in contact with the light strips, so as to be electrically connected to the circuit boards separately, thereby facilitating finishing and docking.
  • the end of the light bar is provided with a second connector, and the second connector is docked with the first connector, and a plurality of the light bars are assembled on the PCB circuit strip.
  • the first connectors are marked, the corresponding second connector is connected, the misconnection of the light bar is prevented, and the yield is improved, and at the same time, the connector is passed.
  • the docking between the two can improve the efficiency of disassembly and assembly of the light bar and improve production efficiency.
  • the first connector is electrically connected to the circuit board by a plurality of wires that are disposed in the PCB circuit strip.
  • the plurality of wires are sequentially channeled and arranged, and then electrically connected to the circuit board, thereby improving the efficiency of the routing, and eliminating the need to separate the plurality of light bars separately on the circuit board, thereby avoiding The wire on the board is confusing.
  • the spacing between the plurality of light bars is equal, the spacing is 52-58 mm, and is disposed on the same side of the PCB circuit strip to facilitate access of the light bar.
  • the light emitting modules on the light bar are connected in series with each other, and the first connectors on the PCB circuit strip are connected in series or in parallel with each other.
  • the PCB circuit strip is mounted on the edge of the circuit board, and one or more PCB circuit strips can be disposed as needed.
  • the edge of the circuit board is convenient for quick disassembly and assembly, and simplifies the connection of the circuit.
  • the invention also provides a method for assembling a light bar assembly structure of a direct type backlight module, which comprises the following steps: Step 1) embedding a plurality of light emitting modules in a plurality of light bars;
  • Step 2) soldering each group of light bars to the circuit board
  • Step 3 The input end and the output end of each group of light bars are respectively connected with the PCB circuit strip, and the first connector of the PCB circuit strip is electrically connected with the second connector of each group of light bars to complete the backlight module light bar. Assembly of the assembly structure.
  • the present invention also provides a liquid crystal display comprising the direct type backlight module light bar assembly structure.
  • the light strip assembly structure of the direct type backlight module of the present invention is designed by separately designing a single PCB circuit strip, and uniformly arranging and arranging the traces of the light strips, so that the wires dedicated to the light strips are routed. It is tidy, and the light bar is correspondingly connected to the PCB circuit strip through the connector to realize quick loading and quick release of the light bar to illuminate each light bar; at the same time, each connector can be identified to solve the light bar Mismatch problem.
  • the light bars are assembled on the PCB circuit strips one by one, and the wires are unified, which facilitates the simplification, simplifies the wiring of the circuit board, disassembles and disassembles quickly, prevents mis-insertion, and effectively improves the assembly efficiency and yield of the backlight module light bar. .
  • FIG. 1 is a schematic view showing an assembly structure of a light bar of a conventional direct type backlight module
  • FIG. 2 is a schematic view showing an assembly structure of a light bar of a direct type backlight module according to the present invention
  • FIG. 3 is a partial enlarged view of a region A of a light bar assembly structure of a direct type backlight module according to the present invention
  • FIG. 4 is a side view of a light bar assembly structure of a direct type backlight module according to the present invention.
  • the present invention provides a light bar assembly structure of a direct type backlight module, including a circuit board 1 and several A light strip (Light-Bar) 2, wherein a PCB circuit strip 10 is disposed at both ends of the circuit board 1, and an input end and an output end of the plurality of light strips 2 are connected to the PCB circuit strip 10.
  • the PCB circuit strip 10 is provided with a plurality of first connectors 101, and a plurality of light bars 2 are mounted on the PCB circuit strip 10 through the first connectors 101.
  • the light bar 2 is mounted on the circuit board 1.
  • the PCB circuit strip 10 is separately designed on the current input end and the output end of the circuit board for uniformly connecting a plurality of light strips 2, and the current output end of the circuit board is also electrically connected to the external power source through a wire.
  • the power supply to the light bar 2 is performed by an external power source.
  • a plurality of first connectors 101 are disposed on the PCB circuit strip 10, and the first connector 101 is electrically connected to the circuit board through a plurality of wires which are penetrated through the PCB circuit strip 10, That is to say, the wires for connecting the light bar 2 and the circuit board are sequentially received by the PCB circuit strip 10, so that the light bars 2 do not have to be separately wired, and are not confused with other wires, which is convenient for reasoning. Wires for easy assembly or disassembly of the light strip 2.
  • the distance between the plurality of the light strips 2 is equal, and the pitch is 52-58 mm, which is disposed on the same side of the PCB circuit strip 10 to facilitate the sequential docking of the light strips 2 in sequence.
  • Each of the first connectors 101 is connected in series or in parallel with each other.
  • the end of the light bar 2 is provided with a second connector 201, and when assembled, through the second connector 201 and the first
  • the male and female ends of the connector 101 are mated with each other, and a plurality of the light bars 2 are mounted on the PCB circuit strip 10, so that the disassembly and assembly of the plurality of light bars 2 can be quickly realized.
  • the second connector 201 and the first connector 101 have the same model number.
  • the first connector 101 and the second connector 201 are respectively soldered to the PCB circuit strip 10 and the light bar 2 by pins.
  • the light bars 2 are parallel to each other.
  • the wires are neatly arranged to facilitate assembly without increasing the thickness of the entire printed circuit board.
  • the light bar 2 is provided with a plurality of light emitting modules 202, preferably LED lights.
  • the plurality of light bars 2 are disposed on the back surface of the circuit board 1.
  • the PCB circuit strip is mounted on the edge of the circuit board 1.
  • One or more PCB circuit strips 10 can be disposed as needed, and the edge of the circuit board 1 is facilitated for quick disassembly and assembly, simplifying the connection of the circuit, and improving the assembly.
  • the efficiency, at the same time, in the peripheral routing, avoids the messy problem of the circuit inside the circuit board 1.
  • the present invention also provides a liquid crystal display comprising the direct type backlight module light bar assembly structure.
  • a liquid crystal display comprising the direct type backlight module light bar assembly structure.
  • the present invention also provides a method for assembling a light bar assembly structure of a direct type backlight module, which comprises the following steps: Step 1) embedding a plurality of light emitting modules 202 in a plurality of light bars 2;
  • Step 2) soldering each group of light bars 2 to the circuit board 1;
  • Step 3 The input end and the output end of each group of the light bar 2 are respectively connected to the PCB circuit strip 10, and the first connector 101 of the PCB circuit strip 10 is electrically connected to the second connector 201 of each group of light bars, and is completed. Assembly of the backlight module light strip assembly structure.
  • the light-emitting module 202 is an LED lamp, which is connected in series to each other and embedded in each group of light bars 2, and each group of light bars 2 sets the number of required LED lights as needed.
  • the light strips 2 are soldered to the circuit board 1 in parallel with each other, and two second connectors 201 are respectively disposed at the input end and the output end, and are connected to the first connector 101 of the PCB circuit strip 10 through the second connector 201.
  • the PCB circuit strip 10 is assembled with the assembled groups of the light strips 2, and the lines of the input end and the output end are unified and smoothed, thereby avoiding confusion of the traces.
  • the light strip assembly structure of the direct type backlight module of the invention is designed by separately designing a single PCB circuit strip, and uniformly arranging and arranging the traces of the light strips, so that the wires dedicated to the light strips are neatly wired and passed through the connector
  • the light bar is correspondingly connected to the PCB circuit strip to realize quick loading and quick release of the light bar to illuminate each light bar; at the same time, each connector can be marked to solve the mismatch problem of the light bar.
  • the light bars are assembled on the PCB circuit strips one by one, and the wires are unified, which facilitates the simplification, simplifies the wiring of the circuit board, disassembles and disassembles quickly, prevents mis-insertion, and effectively improves the assembly efficiency and yield of the backlight module light bar. .

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种直下型背光模组灯条装配结构，包括电路板（1）和若干组灯条（2），其中，在电路板的两端设有PCB电路条（10），所述若干组灯条（2）的输入端和输出端连接于PCB电路条（10）上，所述PCB电路条（10）上设有若干个第一连接器（101），若干个灯条（2）通过所述第一连接器（101）装配于PCB电路条（10）上。通过PCB电路条（10）统一收纳并梳理灯条的走线，使得专用于灯条的导线走线整齐，并通过连接器将灯条相对应地接入PCB电路条（10）上，统一走线，方便梳理，简化电路板（1）的走线，拆装快捷，防止误插，有效提高背光模组灯条的装配效率和良品率。还提供了其组装方法和使用所述直线型背光模组灯条装配结构的液晶显示器。

Description

直下型背光模组灯条装配结构、 组装方法及液晶显示器
技术领域
本发明涉及一种液晶显示器技术，尤其是指一种适用于背光模组上的灯条装配结构及其 液晶显示器。
背景技术
随着液晶技术的发展， 大尺寸液晶电视模组已成为一种趋势。 在大尺寸 LED背光模组 中， 由于尺寸比较大， 参照图 1所示， 背光灯条 （Light-Bar) 30数量比较多， 线路也比较 复杂， 分别由电路板中引出接入， 容易导致线路凌乱及装配错误， 装配效率低， 良品率低。
因此， 有必要提供一种装配效率高且拆装方便的背光模组灯条的装配结构。
发明内容
基于现有技术的不足， 本发明的主要目的在于提供可有效避免灯条的线路凌乱的问题， 防止误配的直下型背光模组灯条装配结构、组装方法及其液晶显示器， 以提高背光模组的产 品装配效率和良品率。
为了实现上述目的， 本发明提供一种直下型背光模组灯条装配结构， 包括电路板和若干 组灯条， 其中， 在电路板的两端设有 PCB电路条， 所述若干组灯条的输入端和输出端连接 于 PCB电路条上。 通过 PCB电路条收纳并疏理各与灯条相对接的各条线路， 使之单独与电 路板电连接， 从而易于整理和对接。
优选地， 所述灯条的端部设有第二连接器， 通过第二连接器与第一连接器对接， 将若干 个所述灯条装配于 PCB电路条上。 这样， 可实现灯条的快装和快拆， 将各个第一连接器进 行标识， 将相对应的第二连接器接入， 防止灯条的误接， 提高良品率； 同时， 通过连接器之 间的对接， 可提高灯条拆装的效率， 提高生产效率。
优选地，所述第一连接器通过穿设于 PCB电路条内的复数导线与电路板电连接。在 PCB 电路条中， 将所述复数导线有序地疏导和整理后， 再与电路板电连接， 提高了走线的效率， 无需将多个灯条分别单独在电路板上走线， 避免了电路板上的导线混乱问题。
优选地， 所述若干个灯条之间的间距相等， 间距为 52-58mm， 且设于 PCB电路条的同 侧， 以方便灯条的接入。
所述灯条上的发光模块相互串联， 所述 PCB电路条上的各第一连接器相互串联或并联。 所述 PCB电路条装配于电路板的边缘， 可根据需要设置一条或多条 PCB电路条， 设置 于电路板的边缘有利于快速拆装， 简化线路的连接。
本发明还提供了一种直下型背光模组灯条装配结构的组装方法， 其包括以下步骤： 步骤 1 ) 将多个发光模块分别嵌入于若干个灯条中；
步骤 2) 将各组灯条分别焊接于电路板上；
步骤 3 )将各组灯条的输入端和输出端分别与 PCB电路条相对接， PCB电路条的第一连 接器与各组灯条的第二连接器对应电连接， 完成背光模组灯条装配结构的组装。
本发明还提供了一种液晶显示器， 其包括所述的直下型背光模组灯条装配结构。
与现有技术相比，本发明的一种直下型背光模组灯条装配结构通过设计一条单独的 PCB 电路条， 统一收纳并疏理灯条的走线， 使得专用于灯条的导线走线整齐， 并通过连接器将灯 条相对应地接入 PCB电路条上， 实现灯条的快装和快拆， 以点亮各个灯条； 同时， 可对各 个连接器进行标识， 以解决灯条的误配问题。 将各灯条一一对接装配于 PCB电路条上， 统 一走线， 方便疏理， 简化电路板的走线， 拆装快捷， 防止误插， 有效提高背光模组灯条的装 配效率和良品率。
附图说明
图 1为现有的直下型背光模组灯条装配结构的示意图；
图 2为本发明一种直下型背光模组灯条装配结构的示意图；
图 3为本发明一种直下型背光模组灯条装配结构的 A区域的局部放大图；
图 4为本发明一种直下型背光模组灯条装配结构的侧视图。
具体实施方式
参照图 2-图 4所示， 为了解决直下型背光模组灯条装配结构走线凌乱和误配问题， 本发 明提供了一种直下型背光模组灯条装配结构， 包括电路板 1和若干组灯条 （Light-Bar) 2， 其中， 在电路板 1的两端设有 PCB电路条 10， 所述若干组灯条 2的输入端和输出端连接于 PCB电路条 10上。 所述 PCB电路条 10上设有若干个第一连接器 101， 若干个灯条 2通过 所述第一连接器 101装配于 PCB电路条 10上。 所述灯条 2装设于电路板 1之上。
其中， 所述 PCB电路条 10单独设计于电路板上的电流输入端和输出端， 用于统一接入 若干个灯条 2， 而电路板上的电流输出端亦通过导线与外部电源电连接， 以通过外部电源向 灯条 2进行供电。 为了方便灯条 2接入， 在 PCB电路条 10上设有若干个第一连接器 101， 所述第一连接器 101通过层贯穿于 PCB电路条 10内的复数根导线与电路板电连接，也就是 说， 通过 PCB电路条 10有序地将用于连接灯条 2和电路板的导线收纳其中， 使得各灯条 2 不必分别单独接线， 也不会和其他走线相混淆， 方便疏理导线， 以易于装配或拆卸灯条 2。 优选地， 若干个所述灯条 2之间的间距相等， 间距为 52-58mm， 其设于 PCB电路条 10的同 侧， 以方便各灯条 2依次对接。 所述各第一连接器 101之间相互串联或并联。
优选地， 所述灯条 2的端部设有第二连接器 201， 装配时， 通过第二连接器 201与第一 连接器 101公母端搭配对接， 将若干个所述灯条 2装配于 PCB电路条 10上， 可迅速地实现 多个灯条 2的拆装。 所述第二连接器 201和第一连接器 101 的型号相同。 所述第一连接器 101和第二连接器 201分别通过针脚焊接于 PCB电路条 10和灯条 2上， 当第二连接器 201 与第一连接器 101对接后， 灯条 2相互平行， 走线整齐， 以方便装配， 不增加整个印刷电路 板的厚度。 所述灯条 2上装设有若干个发光模块 202， 优选 LED灯。 所述若干个灯条 2设 于电路板 1的背面。
优选地， 所述 PCB电路条装配于电路板 1的边缘， 可根据需要设置一条或多条 PCB电 路条 10， 设置于电路板 1 的边缘有利于快速拆装， 简化线路的连接， 提高了装配的效率， 同时， 在周边走线， 避免了电路板 1内部的线路凌乱的问题。
本发明还提供了一种液晶显示器， 其包括所述的直下型背光模组灯条装配结构。 通过采 用所述直下型背光模组灯条装配结构， 使得液晶显示器的背板发光电路插接和维护方便。
本发明还提供了一种直下型背光模组灯条装配结构的组装方法， 其包括以下步骤： 步骤 1 ) 将多个发光模块 202分别嵌入于若干个灯条 2中；
步骤 2) 将各组灯条 2分别焊接于电路板 1上；
步骤 3 )将各组灯条 2的输入端和输出端分别与 PCB电路条 10相对接， PCB电路条 10 的第一连接器 101与各组灯条的第二连接器 201对应电连接，完成背光模组灯条装配结构的 组装。
其中， 所述发光模块 202为 LED灯， 其相互串联后， 嵌入各组灯条 2中， 每组灯条 2 根据需要设置所需的 LED灯的个数。 灯条 2相互平行地焊接于电路板 1上， 其输入端和输 出端分别设置两个第二连接器 201， 通过所述第二连接器 201与 PCB电路条 10的第一连接 器 101相对接， 使得 PCB电路条 10将各组灯条 2组合装配在一起， 将其输入端和输出端的 走线统一理顺， 避免了走线的混乱。
本发明的一种直下型背光模组灯条装配结构通过设计一条单独的 PCB 电路条， 统一收 纳并疏理灯条的走线，使得专用于灯条的导线走线整齐， 并通过连接器将灯条相对应地接入 PCB 电路条上， 实现灯条的快装和快拆， 以点亮各个灯条； 同时， 可对各个连接器进行标 识， 以解决灯条的误配问题。 将各灯条一一对接装配于 PCB电路条上， 统一走线， 方便疏 理，简化电路板的走线，拆装快捷， 防止误插，有效提高背光模组灯条的装配效率和良品率。

Claims

权 利 要 求 书 、 一种直下型背光模组灯条装配结构， 其中， 包括电路板和若干组灯条， 其中， 在电路板的两 端设有 PCB电路条， 所述 PCB电路条上设有若干个第一连接器， 所述灯条的端部设有第二 连接器， 通过第一连接器和第二连接器的相应对接， 以将所述若干组灯条的输入端和输出端 连接于 PCB电路条上。 、 根据权利要求 1所述的直下型背光模组灯条装配结构， 其中， 所述灯条相互平行排布， 其上 设置有若干个发光模块。 、 根据权利要求 2所述的直下型背光模组灯条装配结构， 其中， 所述 PCB电路条装配于电路 板的边缘。 、 根据权利要求 3所述的直下型背光模组灯条装配结构， 其中， 所述灯条之间的间距相等。 、 根据权利要求 4 所述的直下型背光模组灯条装配结构， 其中， 所述相邻灯条之间的间距为 52-58mm。 、 根据权利要求 3所述的直下型背光模组灯条装配结构， 其中， 所述第一连接器设于 PCB电 路条的同侧。 、 根据权利要求 2所述的直下型背光模组灯条装配结构，其中，所述灯条上的发光模块相互串 联。 、 根据权利要求 2所述的直下型背光模组灯条装配结构，其中，所述灯条上的发光模块相互并 联。 、 根据权利要求 2所述的直下型背光模组灯条装配结构，其中，所述若干个灯条设于电路板的 背面。 0、 一种如权利要求 1所述的直下型背光模组灯条装配结构的组装方法， 其中， 包括以下步骤: 步骤 1 ) 将多个发光模块分别嵌入于若干个灯条中； 步骤 2) 将各组灯条分别焊接于电路板上； 步骤 3 )将各组灯条的输入端和输出端分别与 PCB电路条相对接， PCB电路条的第一连接器 与各组灯条的第二连接器对应电连接， 完成背光模组灯条装配结构的组装。
1、 根据权利要求 10所述的直下型背光模组灯条装配结构的组装方法， 其中， 所述灯条相互平 行排布， 其上设置有若干个发光模块， 所述相邻灯条之间的间距为 52-58mm。
、 一种液晶显示器， 其中， 包括如权利要求 1所述的直下型背光模组灯条装配结构。
PCT/CN2013/078521 2013-06-21 2013-06-29 直下型背光模组灯条装配结构、组装方法及液晶显示器 Ceased WO2014201720A1 (zh)

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